From the Manufacturer

In February 1925, a new 2-8-4 steam engine design from the Lima locomotive works completed a series of successful trials at the Boston & Albany within the Berkshire Hills of western Massachusetts. The B&A due to this fact ordered 55 of those new locomotives and the two-8-4 changed into referred to as a Berkshire. This model of the two-8-4 Berkshire is decorated as Nickel Plate 765.